Process and compound for treating mantles.



UNITED STATES PAT NT OEFIOE.

MARCUS H. HULINGS, or ALLEGHENY, PENNsYLV'ANIA, asslcNon OF ONE-HALF TO WILLIAM H. OSBORNE, OF RICHMOND BOROUGH, NEW YORK, N. Y.

PnocEss,-4Nn COMPOUND Eon TREATING MaN'rLEs.

Bpecificationpl Letters Patent.

Pa tented June 2, 190B.

' Application filed Kay 13, 1907. Serial No. 873,292.

To all whom it may concern! Be it known that I, MARCU$ H. HULrNGs,

'a citizen of the United States, and residing at Alle heny, Allegheny county, State of- PennsyF'vania, have invented a certain new and useful Process and Compound for Treating Mantles; and I do declare the followin to be a clear, full, and exactdescription 0 The object of myprocess is to increase the stability of such mantles after completed in their regular course of manufacture so as to increase the length of their usefulness and to render them capable to resist more readily such influences which favor their destruction. My process for treatin mantles. for such purpose consists substantially of a lyi g to them when they are about to be ta en in use a compound in powder-form which is s rinkled over a mantle when the same is p aced in position above the flame and afterjthe usual coating has been burned ofi from it, so that the powder comes in actual contact with the substance of which the mantle is composed and becomes capable of adhering thereto. The flame durlng the application of the powder may be somewhat reduced.

The powder so ap lied consists of matter which is ca able O becoming incandescent without oxic ation, so that by this'added material the substance of the mantle, capable of becoming incandescent, is increased whereby the brilliancy of the light 'ismaterially en hanced. A suitable composition for this compound is common salt, lime,- alum and borax, or their equivalents, withsuflicient coloring matter. added to show the elfect when used,- so that thesame may be r0 erly and evenly applied, all being in pow r orm, the whole mass thoroughly-and evenl i intermixed. The addition of such powder, mostl.

the mantle, hardens the same and renders it more durable.

' The preferable proportions of the ingredicuts for this com ound are of the comof which combines with the delicate fabric of a mon salt, 40% o the lime, 5 of the alumand 5% of the bOraJE. As a co oring matter Eowdered charcoal ma be used, sufficient eing added to show co or. I g

Having described-my invention, 1 claim asnew. 1. The. process of treatingmantles after completed their regular course of manu' facture to increase their durabilit and ca pacity for incandescence and whic directl onto them,-while in position for use, a pow er which is capable of adhering to the material of the mantle and of becoming in-, can'descent.

2.. The process of treating mantles after completed in their regular course of manufacture to increase their durabilit and capacity .for incande'scence and whic consists of burning off their coating and of applying to them when placed in position for use, a powder "consist ng of a mixture of common salt, lime, alum and borax. I

3. A com ound 'for treating mantles and consists I ,of burning off their coating and of sprinkling which is to e applied to them 'when ready alum and borax.

4." A com ound for treating mantles and which is to e applied to them when ready for use to increase their durability and caof a powder composed of 50% common salt for. use to increase their durability and ca- 40% lime, 5%- alum and 5%. bor'ax, and

matter deal to ive "color; I

In tes ilfnonyi w ereof, I hereunto ailix my MARCUS H. HULINGS.

Witnesses: a WILLIAM H. OSBORNE,

Ammrn Q. CARPENTER.

90. signature in the-presence of two witnesses.

a5 pacity for incandescence, the same consisting 

